Regarding the GPW Benchmark S.A. Communique The cessation of WIBID and WIBOR Reference Rates in an orderly fashion and their provision during the wind-down period ending 1 January 2037, the GPW Benchmark S.A. published the amended Regulations for the WIBID and WIBOR Reference Rates.

The changes will enter into force on June 18, 2026.

The amended Rules are available here.